Tea cadmium hair wash is generally recommended for 7-10 consecutive days may show signs of white hair turning black. Tea withers, also called tea seed cake, is a traditional Chinese medicine that has a certain effect of activating blood circulation and removing blood stasis. From the point of view of Chinese medicine, the hair is the blood of the surplus, blood is the hair since the rise, continuous use of tea withered to wash hair can accelerate blood circulation, thereby promoting the hair follicles of the scalp area hair function, can make the hair black and smooth, not easy to grow gray hair, but also can make gray hair gradually turn black. From a medical point of view, tea wilts are very rich in tea saponin and rich in protein, sugar and starch and other ingredients, the use of tea wilts to wash hair to a certain extent to supplement the nutrients to the hair follicles, thus playing the role of hair, hair growth. Tea wool hair washing should be noted under the guidance of a doctor, and sensitive skin should not be used to avoid contact irritant dermatitis.